Adjustable boring-tool.



L. GRANGE & A. E. PENSTERBUSCH.

ADJUSTABLE BORING TOOL.

APPLICATION FILED JAN-.24, 1914.

- 1,113,958. y 1 Pa1en1ed012111911 @ENCE CRBN qviytmwwf C? EFENSTERB HTHE MORRIS PETERS C0., PHoTcrLlHo., WASHINGUN. D. C.

UNITED sTATEs ,PATENT OFFICE.

LAWRENCE GRANGE AND ALVIN EENsTEnBUscH, oEMOLINE, ILLINOIS.

ADJUSTABLE BORING-TOOL. l

Specification of Letters Patent.

Patented oet. 2o, 1914.

Application filed January 24, 1914. SeriaLNO. 814,213..

To all whom imag concern: ,j j

Be it known that we, LAWRENCE GRANGE and ALVIN E. FENsTEnnUsoI-I,citizens of the United States, residing at Moline, in the county of Rockisland and State of Illinois,

have invented certain new and useful lmprovements in AdjustableBoring-Tools, of which the following is a specication, reference beinghad to the accompanying drawings. I i j This invention relates to newand useful improvements in boring tools and more particularly to anadjustable boring tool `andj the primary object of the invention is toprovide an improved tool holder which-is capable of ready and accurateadjustment.

A further object of the invention resides in providing an improvedhelder composed of a plurality of parts, one portion of which hasadjustable connection with another part thereof, through the medium of acam slot and pin. j

Still another object of the invention' resides in providing a devicewhich is simple and durable In construction, Inexpenslve toy manufactureand one which will be very efficient and useful in operation.

1With these and other objects in view, the' invention consists in thenovel features `of construction, combination and arrangement of parts aswill be hereinafter refe-rredto` pointed out in the therein. Fig. 4C isa bottom plan view of the intermediate member of the device. Fig. 5'

is a bottom planview of the movable member designed for carrying theboring tool;

sleeverlike shank 7 depending from the block i for-head 6, extendsthrough the enlarged central opening 13 ofI said member 12. Abowh andFig. 6 is a side elevation thereof.

In describing our invention, we shall refer to the drawings 1n whichs1m1lar reference characters designate corresponding parts throughoutthe several views and in which- 1 indicates a spindle or shank forme onone face of a block or head t and loosely applied on said spindle orshank, is a nut 3,

whichis internally threaded. This inter# nally threaded nut is engagedwith a reduced upper threaded portion 2 of the block.

or heady tand the outer peripheral edge of said nut 3 is knurled so asto be readily engaged by the lingers of the operator. That portion ofthe collar or block l below the threaded portionlthereof and whichdepends from the nut 3 when the latter is applied thereto is providedwith a diametrical dovetailchannel` 5. Slidably mounted in thisdove-tail channel 5, is a block or head 6, the side edgesof whicharebeveled coincident to the inclination of the walls of saidchanf nel tofit snugly, but slidably therein. This bleek on head 6 forms thehead'ofa sleevelike gripping or clamping member 7 which is formedintegral with thehead and extends therefrom. This sleeve-like member V7is split a plurality of times, as shown at Sand is externally threaded.This member is adapted-to receive the shank 9 of the boring tool and asleevelike mitlO is provdedfor engagement4 with the threaded portion ofthe member 7 to tightly grip the two in position with respect to oneanother.

The block or collar 2 is provided with a pairof vertical channels 11awhich are .disposed on Yeach side of the spindle or `shank thereofandslightly spaced therefrom, said channels, extending from the upperface of the member 4 to the channel 5 in said member. Disposed in thesechannels are the spacingpinsllwhich are of slightly greater .length thanthe length of said channels l1 and in this manner the locking nut 3 isprevented from binding tightly against the upper kface of the member f1and the lower ends of said pins may be caused to bind tightly againstthe upper face of the member 6, `when desired.` i j Anadditionalcollaror the like 12 is provided, the same having an enlarged centralopening, as indicated at 13,. The upper face vof, this collar is offsetto provde'a seat, as

.shown at 14, whereby to receive the depending portion of the member 4therein. When loo said member 12 is properly applied, the

shapedspring washer 15 is so applied on nut 10 is properly applied touse, the same will be forcedagainst this washer which, in if..

turn, holds the member 12 in position against the member` 1i This member12 has 30 l inch, whereby very line accurate adjustments 1 may be made.It will be understood that the outer peripheral edge thereof alsoknurled, as has the member 3, and inasmuch as said member 12 is providedfor the purpose of adjusting the boring tool with respect to thespindle, the same may be termed, for convenience, an adjusting nut. Incarrying out the purpose of the device, for adjusting the tool, theupper face of the seat 14 on the member 12 is provided with an eccentricor cam slot 16,' while the head member or block 6 is provided with a pinor stem 17 fitting within lthe slot 16. From this construction, it willbe seen that as the member 12 is rotated,` the pin 17 disposed in thecam oreccentricslot 16, will be caused to take a position in accordancewith the directiony of the slot and in view of the particular contour ofsaid slot, will cause said member 6 to be'moved in its channel 5, in onedirection or the other, asthe case may be. In the movement of the'member 6, the sleeve-like rshank 7 thereon with the shank of the tool 9therein will also be moved and thus the tool may be adjusted to variouspositions with respect to the spindle 1.

In order to provide for proper adjustments, the outer periphery of themember 12, at the upper edge thereof, is beveled and provided with ascale or dial, as shown at 18, the 'samebeing graduated to thousandthsof an after anv adjustment has been made, the clamping nut 3 may beturned home on the member 4 and when so disposed, will securely lock theparts of the device in the particular positions to which the same havebeen adjusted. In order to permit any further adjustments to be made,the nut 3 must iirst be released and the adjustments may be made by theturning` of the adjusting nut 12, as desired. y

From `the vforegoing description of the construction of our improveddevice, the operation thereof and the manner of applying the same to usewill be readily understood and it will lbe seen that we have provided anv` Y improved adjustable boring tool which is simple and durablek inconstruction, ineX- pensive to manufactureand one which will ybe veryefficient and useful in operation.

While we have'particularly described the elements best adapted toperform the functions set forth, it is obvious that various changes inform, proportion and in` lthe minor `details of construction may beresorted to Without departing from the spirit or sacrificing any of theprinciples of the invention as defined by the appended claims.

Having thus described what we claim istj 1. In a device of the class"described, a

spindle, a head formed thereon and pro` vided with a diainetricalychannel on 'its under face, a tool carrying member slidably thisinvention,

mounted in said channel, an adjusting nut applied to the head andprovided with an eccentric slot therein, and a pin carried by the toolcarrying member and engaged within said slot whereby to adjust said toolcarrying member to various positions with respect to the spindle, uponrotation of the adjusting nut.

2. In a device of the class described, a spindle, a head formed thereonand provided with a diametrical channel on its under face, a toolcarrying member slidably mounted in said channel, an adjusting nutapplied to the head and provided with an eccentric slot therein, a pincarried by the tool carrying member and engaged within the aforesaidslot whereby to slide the tool carrying member in the channel as saidadjusting nut is rotated, and means for clamping the tool carryingmember in any adjusted position with relation to the spindle.

3. `In a device of the class described, a spindle, a head formed on saidspindle and provided with a diametrical channel in its under face, atool carrying member mounted in said channel, a sleeve extendinglaterally from the tool carrying member to engage the shank of a tool,an adjusting nut applied to the head and provided with an eccentric slottherein, a pin carried by the tool carrying member' and engaged withinthe aforesaid slot whereby to slide said tool carrying member in thechannel upon rotation of the adjusting nut, and a clamping membermounted upon the sleeve to clamp the tool carrying member in anyadjusted position with relation to the spindle.

4. In a device of the class described, a spindle, a head formed thereonand provided with a diametrical channel on its under face, a toolcarrying member slidably mounted in said channel, an adjusting nutapplied to the head and provided with an eccentric slot therein, a pincarried by the tool carrying member and engaged with the aforesaid slotwhereby to adjust said member to various positions with respect to thespindle upon the rotation of the nut, and clamping means havingengagement with the head and said tool carrying member to clamp thelatter in any adjusted position with respect to the spindle.

y5. In a device of the class described, a spindle, a collar formedthereon, and provided with a dove tail diametrical channel in its underface, a tool carrying member provided with an elongated dove tail headslidably mounted in the dove-tail channel of the first mentioned head,an adjusting nut applied to the head and provided with an eccentricslot, a pin carried by the head of said tool carrying member andreceived in the aforesaid slot whereby to slide the tool carrying memberand parts carried thereby in the channel as said adjusting nut isrotated, and means in connection with said head for clamping the toolcarrying member` in any adjusted position.

6. In a device of the class described, a

. spindle, a head formed thereon provided head thereon slidably mountedin the dia.

metrical channelA in said rst mentioned head, an adjusting nut carriedon said head provided with an eccentric slot in the upper face thereof,and means in connection With said tool carrying member for supportingsaid adjusting nut in position in connection With the head and toolcarrying member, a depending pin carried on the head of said toolcarrying member and disposed Within i Copies of this patent may beobtained for ve cents each, byladdressing the Commissioner Washington,D. C.

the slot of said adjusting nut, whereby to slide said tool carryingmember laterally With respect to the spindle as said nut is ro' tated, apair of pins disposed in the transverse channels of said head membensaidpins being of slightly greater length than the channels in which thesameare disposed and adapted to contact at their one end with the head onsaid tool carrying member, and a clamping nut in connection With thefirst mentioned head adapted for engagement with the one ends of saidpins to clamp the latter in binding engagement with the tool carryingmember for securing the latter in any adjusted position.

In testimony whereof We hereunto affix our signatures in the presence oftwo Witnesses. v

LAWRENCE GRANGE. ALVIN E. FENSTERBUSCH.

lWitnesses:

`WM. M. WALKER, LILLIAN DEISENROTH.

of Patents,

